Add autotext on new annotation

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

extension.json

@@ -33,7 +33,8 @@
 		"MediaWiki\\Extension\\AnatImageViewer\\": "includes/"
     },
     "Hooks": {
-        "AlternateEditPreview": "MediaWiki\\Extension\\AnatImageViewer\\AnnotationHooks::onAlternateEditPreview"
+        "AlternateEditPreview": "MediaWiki\\Extension\\AnatImageViewer\\AnnotationHooks::onAlternateEditPreview",
+        "EditFormPreloadText": "MediaWiki\\Extension\\AnatImageViewer\\AnnotationHooks::onEditFormPreloadText"
     },
     "ContentHandlers": {
         "annotation": "MediaWiki\\Extension\\AnatImageViewer\\AnnotationHandler"

includes/AnnotationHooks.php

@@ -23,6 +23,23 @@ class AnnotationHooks {
         return true;
     }
 
+    public static function onEditFormPreloadText( &$text, &$title ) {
+		if ( $title->getNamespace() === NS_AV_ANNOT ) {
+            $text = <<<NEWAN
+            baseImage = ""
+
+            [view]
+            direction = ""
+
+            # [annotation.1]
+            # position =
+            # leader.1 =
+            # light = true
+            NEWAN;
+        }
+        return true;
+    }
+
     /**
      * Small helper function to display information on the browser console
      *